polythene is an example of plastic true or false

Which of the following is non-biodegradable? PET is a ______ 4. Synthetic fibers are more durable and affordable which makes them more popular than natural fibers.Â. It is a biodegradable material so it eventually disintegrates It never fully goes away, it just breaks into little pieces There is no such thing as plastic waste, all plastic is … Which of the following is natural fibre obtained from plants? HDPE, by contrast, has common applications in construction (for example, in its use in the fabrication of drain pipes). 10. Â Â Â Â Â Â Â Â (c) WoodÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) Plastic, 15. It is very durable, resistant to chemicals. First, we need to take an iron stand with a clamp. Cellulose fibers (like cotton and linen). It is also called as viscose rayon and artificial silk. Question: What is the difference between Thermosetting and Thermoplastics? Plastic deformation occurs more readily in warm rock than in cool rock. Choose the correct answer: Example of thermosetting plastic is . It chokes drains and blocks the pores of soil, which hinders the absorption of water by soil. For example: Polythene, polytetrafluroethylene (PTFE), polystyrene, and PVC (polyvinylchloride). It means not extra care is required. Melamine is ______ What is the full form of PVC? For example: Bakelite etc. Due to this property, it is used for making fishing nets, parachute, bag, ropes etc. Synthetic fibers are more durable and affordable which makes them more popular than natural fibers.Â, The disadvantages of plastics are as follows –. True or false? Answer: Polythenes or plastic bags are non biodegradable. Name any two types of polyesters and their uses.Â, Answer: Fabric made from polyester does not get wrinkled easily. c. ______ shrinks on burning producing black smoke. Water is an example of a chemical element. Which fiber is used as artificial wool? Topics covered are Introduction to fibres, kinds of fibres. For both stationary and moving objects with unchanging speed and direction, all the forces acting on the objects are in balance with each other, i.e. Polyester is manufactured from petroleum. The topics we will cover in this chapter are as follows: All clothing material called fabric is woven out of fibres. Synthetic Fibres: The fibres made by human beings are called synthetic fibres. We should buy products with less plastic packaging. These are used for manufacturing toys, combs, car grills and various types of containers. Answer (a) The waste material that cannot be broken down into non-poisonous substances also that cannot be decomposed and recycled is called non-biodegradable waste. When plastics are burnt, toxic fumes are released into the atmosphere causing pollution. Â Â Â Â Â Â Â Â (c) nylonÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) thermosetting polymer, 10. Answer: Rayon It can be drawn into very fine fibers that can be woven like any other yarn. Â Â Â Â Â Â (a) CottonÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (b) Wool, Â Â Â Â Â Â Â (c) RayonÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) Ketone. Polyester does not shrink. Fabrics are sold by names like polycot, polywool, terrycot etc. What is the other name for artificial silk? A) true B) false 18. All these clothes are made up of fibers and clothing material totally depends upon the nature of fiber. What is the name of regenerated synthetic fiber? Some monomers of plastics have proven to cause cancer also. What’s it like working in a lab? Show transcribed image text. ______ burns vigorously and leaves little ash.Â, b. Classes A, B and C. C. Class A and C. D. Class D and A. Does water cover more or less than 50% of the Earth’s surface? So, it is quite suitable for making dress material. Which term is used for polymers made up of a large number of glucose units? What are polycot and polywool? Plastics are corrosive in nature. As the name suggests, these are made by mixing two types of fibers. The structure of polymer can be compared to that of a bead necklace- the bead being the monomers. It means that they cannot be decomposed or recycled by the microorganisms. hich of the following is a natural fiber? True or False? Type of bonding dictates whether a material is electrically conductive or not. We have seen that those plastic covers do not cause any kind of electric shock when you touch it. Answer: As you have seen that all electric wires are insulated with plastic. Â Â Â Â Â Â Â Â Â (a) NylonÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (b) Rayon Rayon: Rayon is also known as artificial silk. Blockage and choking of drains and sewer lines .Â 3. Â Â Â Â Â Â Â Â (c) PVCÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) Polythene, 07. Â Â Â Â Â Â Â Â (c) petrochemicalsÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) Bakelite, 12. It is manufactured regenerated cellulose fiber. It can be drawn into very fine fibers that can be woven like any other yarn. 7. Thermosetting plastics: These are those which once molded canât be softened on heating. Q: True or false – Nepal is the only country in the world which does not have a rectangular flag? It is also called artificial silk. 15. Reduce: This means that anything that harms the environment should not be utilized or we should limit the use of that particular substance. plastic (polythene) 49. Write advantages of using plastic containers for storing food? Reuse: This means that we should reuse the substances that does not harm our environment and it should be biodegradable. Terylene is a type of popular polyester. You may be aware of a recent Friends of the Earth Europe and Zero Waste Europe report that claims that plastic packaging has no positive effect on food waste reduction. It means that synthetic fiber dries easily after washing. What is the name of first fully synthetic fiber? to highly specialized uses in aircrafts, ships, spacecrafts, health care, etc. copper) is a good conductor and the coating (ie. plastic) is an insulator. (b) Animal bones and leather belts are biodegradable wastes. True 5. This article highlights the effects of plastic pollution, while also telling you about the causes of this problem, and some solutions. Â Â Â Â Â Â Â Â (c) nylonÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (d) thermosetting polymer, 13. This weight indicates the strength of the fiber. True b. if(k.className == "adPushupAds" && k.getAttribute("data-push") != "1") { The publication’s main contention is that both food waste and plastic packaging are increasing, thus the use of plastic packaging does not positively contribute to food waste reduction. We should carry cotton or jute bags for shopping. They are used for making toys, car grills etc. 1. soil and water pollution.Â It means that they can be used for a longer period of time. Synthetic fibers are not good absorbers of _______ .Â Answer: 2. d. ______ burns readily with the smell of burning paper.Â Check the below NCERT MCQ Questions for Class 8 Science Chapter 14 Chemical Effects of Electric Current with Answers Pdf free download. CBSE Class 8 Science Lessons Explanation, Notes, NCERT Question Answers, ← Crop Production and Management Class 8 CBSE Science Notes, Question Answers, Microorganisms Class 8 Notes, Question Answers →, Chapter 1 How, When and Where Class 8 History Explanation, Question Answers, Chapter 2 From Trade to Territory â The company establishes power Class 8 History, Explanation, Question Answers, Chapter 3 Ruling the Countryside Class 8 History Explanation, Question and Answers, Chapter 4 Tribals, Dikus and the Vision of a Golden Age Class 8 History Explanation, Chapter 5 When people rebel – 1857 and after Class 8 History Explanation, Chapter 6 Weavers Iron Smelters and Factory Owners Class 8 History, Explanation, Chapter 1 The Indian Constitution, Class 8 Civics Explanation, Question and Answers, Chapter 2 Understanding Secularism, Class 8 Civics Explanation, Question and Answers, Chapter 3 Why do we need a Parliament, Class 8 Civics Explanation, Question and Answers, Chapter 4 Understanding laws, Class 8 Civics Explanation, Question and Answers, Chapter 5 Judiciary Class 8 Civics Explanation, Question and Answers, Chapter 6 Understanding Our Criminal Justice System Class 8 Civics Explanation, Question and Answers, Chapter 7 Understanding Marginalization, Class 8 Civics Explanation, Question and Answers, Chapter 8 Confronting Marginalisation, Class 8 Civics Explanation, Question and Answers, Chapter 9 Public Facilities, Class 8 Civics Explanation, Question and Answers, Chapter 10 Law and Social Justice, Class 8 Civics Explanation, Question and Answers, Chapter 1 Resources, Class 8 Geography lesson Explanation, Question and Answers, Chapter 2 Land, Soil, Water, Natural Vegetation and Wildlife Resources, Class 8 Geography Lesson Explanation, Question and Answers, Chapter 3 Mineral and Power Resources, Class 8 Geography lesson Explanation, Question and Answers, Chapter 4 Agriculture, Class 8 Geography lesson Explanation, Question and Answers, Chapter 5 Industries, Class 8 Geography lesson Explanation, Question and Answers, Chapter 6 Human Resources, Class 8 Geography lesson Explanation, Question and Answers, Chapter 1 Crop Production and Management Class 8 CBSE Science Notes, Question Answers, Chapter 2 Microorganisms Class 8 Notes, Question Answers, Chapter 3 Synthetic fibres and Plastics Class 8 Notes, Question Answers, Chapter 4 Metals and Non Metals Class 8 Notes, Question Answers, Chapter 5 Coal and Petroleum Class 8 Notes, Question Answers, Chapter 6 Combustion and Flame Class 8 Notes, Question Answers, Chapter 7 Conservation of plants and animals Class 8 Notes, Question Answers, Chapter 8 Cell Structure and Function Class 8 Notes, Question Answers, Chapter 9 Reproduction Class 8 Notes, Question Answers, Explanation, Chapter 10 Reaching the age of adolescence Class 8 Notes, Question Answers, Explanation, Chapter 11 Force and Pressure Class 8 Notes, Question Answers, Explanation, Chapter 12 Friction Class 8 Notes, Question Answers, Explanation, Chapter 13 Sound Class 8 Notes, Question Answers, Explanation, Chapter 14 Chemical Effects of Electric Current Class 8 Notes, Question Answers, Explanation, Chapter 15 Some Natural Phenomena Class 8 Notes, Question Answers, Explanation, Chapter 16 Light Class 8 Notes, Question Answers, Explanation, Chapter 17 Stars and the Solar System Class 8 Explanation, Notes, Examples, Question Answers, Chapter 18 Pollution of Air and Water Class 8 Explanation, Notes, Examples, Question Answers, Chapter 1 Dhwani Class 8 Summary, Explanation, Question Answers, Chapter 2 Lakh Ki Chudiyan Class 8 Summary, Explanation, Question Answers, Difficult Words, Chapter 3 Bus Ki Yatra Class 8 Summary, Explanation, Question Answers, Chapter 4 Deewano ki Hasti Class 8 Summary, Explanation, Question Answers, Chapter 5 Chitthiyon Ki Anoothi Duniya Class 8 Summary, Explanation, Question Answers, Chapter 6 Bhagwan Ke Dakiye Class 8 Summary, Explanation, Question Answers, Chapter 7 Kya Nirash Hua Jaye Class 8 Summary, Explanation, Question Answers, Chapter 8 Yeh Sabse Kathin Samay Nahi Class 8 Summary, Explanation, Question Answers, Chapter 9 Kabir Ki Saakhiyaan Class 8 Summary, Explanation, Question Answers, Chapter 10 Kamchor Class 8 Summary, Explanation, Question Answers, Chapter 11 Jab Cinema Ne Bolna Sikha Class 8 Summary, Explanation, Question Answers, Chapter 12 Sudama Charit Class 8 Summary, Explanation, Question Answers, Chapter 13 Jahan Pahiya hai Class 8 Summary, Explanation, Question Answers, Chapter 14 Akbari Lota Class 8 Summary, Explanation, Question Answers, Chapter 15 Surdas ke Pad Class 8 Summary, Explanation, Question Answers, Chapter 16 Pani ki Kahani Class 8 Summary, Explanation, Question Answers, Chapter 17 Baaz aur Saanp Class 8 Summary, Explanation, Question Answers, Chapter 18 Topi Class 8 CBSE Hindi Lesson, Summary, Explanation, Question Answers, Entrance Exams for Arts students after Graduation, List of Entrance Exams conducted by IGNOU.

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